If you are to rent an appartment(or house for that matter), the average cose per month is at around 1400$, The average mortgage is at about 150.000$ per family, you can read more about it here(i guess u need to translate it though as it's in Norwegian). http://www.aftenbladet.no/nyheter/okonomi/Snitt-840000-hver-i-gjeld-2555933.html